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CVE-2026-41136

5.5 medium SSVC exploitation: poc Analyzed
NVD · CVE.org

free5GC AMF provides Access & Mobility Management Function (AMF) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Prior to version 1.4.3, the `HTTPUEContextTransfer` handler in `internal/sbi/api_communication.go` does not include a `default` case in the `Content-Type` switch statement. When a request arrives with an unsupported `Content-Type`, the deserialization step is silently skipped, `err` remains `nil`, and the processor is invoked with a completely uninitialized `UeContextTransferRequest` object. Version 1.4.3 contains a fix.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.5 · free5gcNVD modified 2026-10-26 22:10

Affected (CPE criteria) 2

  • cpe:2.3:a:free5gc:amf:*:*:*:*:*:go:*:*
  • cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*

References 3